Thailand's player Jazz Janewattananond (L), Japan's player Ryo Ishikawa (C) and Spain's player Sergio Garcia compete during the first day of competition at the SMBC Singapore Open held in Singapore's Sentosa Golf Club on Jan 17, 2019. (Photos: Xinhua)

Thailand's player Jazz Janewattananond competes during the first day of competition at the SMBC Singapore Open held in Singapore's Sentosa Golf Club on Jan 17, 2019.

Philippines' player Miguel Tabuena competes during the first day of competition at the SMBC Singapore Open held in Singapore's Sentosa Golf Club on Jan 17, 2019.

China's player Liang Wenchong competes during the first day of competition at the SMBC Singapore Open held in Singapore's Sentosa Golf Club on Jan 17, 2019.

England's player Matthew Fitzpatrick competes during the first day of competition at the SMBC Singapore Open held in Singapore's Sentosa Golf Club on Jan 17, 2019.

Japan's player Yuta Ikeda competes during the first day of competition at the SMBC Singapore Open held in Singapore's Sentosa Golf Club on Jan 17, 2019. (Xinhua/Then Chih Wey)

Korea's player Choi Hosung competes during the first day of competition at the SMBC Singapore Open held in Singapore's Sentosa Golf Club on Jan 17, 2019.

Japan's player Ryo Ishikawa competes during the first day of competition at the SMBC Singapore Open held in Singapore's Sentosa Golf Club on Jan 17, 2019.

Spain's player Sergio Garcia competes during the first day of competition at the SMBC Singapore Open held in Singapore's Sentosa Golf Club on Jan 17, 2019.